Hi, I am looking to get in touch with somebody who knows more about the connection between host configuration, qemu, kvm, and the virtio block device driver guest side than I know.
My goal is to have a possibility to give a "speaking" name to any block device handed into a guest instance by the host. That name should be visible inside the guest, just as a LV is visible with its name in the system running the LVM. For example I would like to say on the qemu or kvm command line '-drive file=some-file,label=some-label,if=virtio', and have the string "some-label" show up somewhere in /sys/block in the guest, much as /sys/block/sda/device/model shows the hardware vendor and type for a standard SATA disk. The guest could then handle the information passed into it by the host with udev rules, allowing fstab constructs like "mount /dev/virtio/block/by-label/some-label as /usr" Since I don't have pretty much clue about kernel programming, I guess that one would need to have qemu/kvm support for the additional label to be passed to the emulated/virtualized guest, and a modification to the guest kernel virtio driver which needs to accept the information passed by the host and to generate the appropriate entry in /sys. Am I correct in my assumption? Can you say who I need to talk to to get advice about how to implement this (or to have it implemented, if it's easy enough)? Any hints will be appreciated. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Mannheim, Germany | lose things." Winona Ryder | Fon: *49 621 72739834 Nordisch by Nature | How to make an American Quilt | Fax: *49 3221 2323190